milling help asap

[rkm rdt]

All this for a lousy phone pic? What are we here? Fail Army?

 

[sidesh0wb0b]

All this for a lousy phone pic? What are we here? Fail Army?

based on how my life is right now, yes. everything is fail army. with the exception of the lab. it's rocketman.

best i can find right now. i think i have a post-stain/glaze pic. just not seeing it now.

 

[rkm rdt]

Gary Busy tooth library.

 

[sidesh0wb0b]

Gary Busy tooth library.

indeed.
patient shows 2-3mm of incisal on the most extreme smile he can muster in his old age. sooooo, not really a concern. i offered pink porcelain to mask the length. was a no go. this should last the guy a lifetime if you know what i mean.

 

[rkm rdt]

Not much choice when you have to match the other side.

 

[Kaiser7100]

What is the strength on that zirconia? Cantilever bridge with high trans zirconia even anterior has never worked for me. I’ve found using 1200mpa designed well with good cutback much stronger than Full contour with high translucent. Case looks great.

 

[sidesh0wb0b]

What is the strength on that zirconia? Cantilever bridge with high trans zirconia even anterior has never worked for me. I’ve found using 1200mpa designed well with good cutback much stronger than Full contour with high translucent. Case looks great.

this was milled with Ron/TD Dental Extreme zirconia. strength is ~670MPa i believe. stronger than pressed emax or similar. those connections are massive. prob 9-10mm tall and 3-8mm thick depending upon the area measured. we have had nearly no breakage of super high trans zirconia like this. i wouldn't normally place a cantilever like this, but the patient had a failed implant at the 11 site and since he was older he didn't want to go through another 6-12 mo of bone/tissue grafts, placement, and healing time. this was the next best option. high strength zirconia was advised but we decided to try it with high trans first. prob won't ever have an issue.

 

[KentPWalton]

You're welcome @sidesh0wb0b! No problem. Hope the patient is happy with the results!

 

[RDA]

Do all milled bridges need a support bar attached? I have a three unit anterior to mill out today.What length requires a support bar?

 

[sidesh0wb0b]

Do all milled bridges need a support bar attached? I have a three unit anterior to mill out today.What length requires a support bar?

no they dont all need.
IMHO its based around how long of a span, and if its turning a corner. the stabilizer just keeps it from warping some strange direction during sinter. ive done a 6unit (mostly posterior) without a stabilizer no issues. ive also done a 5unit that rounded the corner and put a stabilizer on it.

 

[PRO ARTS DL]

No they don't all need. I don't think you need for a 3 unit bridge.

I think as a standard I've heard 6+ units will need the support bar. You should stick to this.

I've done 10-11 unit bridges without any support structure that fit perfect. I think it is because of the sintering granulat like the one Zubler or AG sells. It acts as a support.

 

[RDA]

No they don't all need. I don't think you need for a 3 unit bridge.

I think as a standard I've heard 6+ units will need the support bar. You should stick to this.

I've done 10-11 unit bridges without any support structure that fit perfect. I think it is because of the sintering granulat like the one Zubler or AG sells. It acts as a support.

Thank you!

 

[Lindsay Patterson]

Make that part of the margin as thick as you possibly can and take back off in the green state after its milled.

 

[TheLabGuy]

As others have stated, no you don't. Only time we use a stabilizer bar is if we have multiple abutments and/or anything that starts in one quadrant and ends in another. Hope that helps